Type-writing machine.



H.!A. CARHART.

TYPE WRITING MACHINE.

Armcmou msn ocr. 4. 191s.

1 ,274,985 Patented A118- 6 1918- WITNEEEES INVENTUR @yg/QW /af Wim@ J5 ATTURNEY particularly on the feed do UNITED STATES PATENT OFFICE.

HERBERT A. CABHART, 0F SYRACUSE, NEW YORK, ASSIGNOB. T0 REMINGTON WRITER COMPANY, 0F ILION, NEW YORK, A CORPORATION 0F NEW YORK.

'rYrE-WRITING MACHINE.

Speeioation of Letters Patent.

Patented Aug. 6, 1918.

Application led October 4, 1916. Serial No. 123,668.

To all whom it may concern.'

Be it known that I, HERBERT A. CARHART, citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in TypelWriting Machines, ofwhich the following ing moved about for any reason, it is likely to be turned on one side, and if the righthand side of themachine is turned downward the carriage runs down rapidly by gravity to the extreme righthand end of its travel where it is arrested with a bang or severe jar. If the'left-hand end of the machine is turned downward thev whole weight of the carriage, in addition tothe pressure of the carriage spring, comes onthe feed dogs and feed rack; and if the machine happens to be set clown hard in this position a severe strain is brought uponithese parts, that is in en gagement with the rack. y invention has for its principal object to prevent shock and injur to the machine lfrom thecauscs mentione I have provided means for lock-` ing the carriage in a certain position so that it cannot run in either direction and comw bined with said lock a means for releasing the carriage from the escapement devices, so that in handling the machine no strain can come on said devices.

I have shown the invention applied to a portable machine, but it is also applicable to heavier machinesand in fact it is usefulon any machine, when said machine is being shipped or for any other reason being transu ported or moved about or tilted up.

To the' above and other ends which will hereinafter appear, mywinventon consists in certain featuresVY of construction and combinations and arrangements of parts, all of which. will be fully set forth herein and partieularly pointed out inthe claims.

In the accompanying drawings,

Fi re 1 is a front to rear vertical sectiona view showing' the carriage of a typewriting machine having my invention embodied therein and some arts of the stafionary framework, my lc': ing and carriage releasing devices being shown in carriage locking and in escapement releasing positions.

Fig. 2 is a view similar to part of Fig. 1 but showing the parts in their normal positions which `they occupy when the machine 1s' 1n use. 1

Fig 3 is a fragmentary fi ont view partly in section of one end of the carriage and associate parts, the carri age lock Abeing shown ip locking position.

'Fig. 4 1s an enlarged top view of the locking and carriage releasing devices with a lportion of the framework.

Fig. 5 is a fragmentary rear view of the arri age feed rack and a lifting lever there- In all of the views parts have been omitted or broken away as has been. found convenient.

The Remington Junior typewriter to which my invention is here shown applied, is well-known and only,7 so much of the ma-` chine is shown in the drawings as is necessary to illustrate the application of my invention thereto.

The main frame of the machine comprises side plates each of whichincludes a bar 1. A carriage rail 2 is secured near its ends to said bars. the rail in this machine consisting of a straight bar with ball bearing grooves in its front and rear edges for eoperation with anti-friction balls 3, Which balls also coperatie with a rear rail 4 and a front rail 5 constituting parts of the typewriter carriage, said rails 4 and 5 having grooves facing those in the fixed rail 2. Said carriage also comprises end pieces 6 secured tc the rails 4 and 5 and having journaled therein the axle 7 of a platen 8. The carriage is drawn toward the left by means of a spring drum, not shown, and its motion is controlled by eseapement mechanism which in this machine comprises a feed rack 10 mounted at its ends on the rear ends of arms 11 which are pivoted at 12 to the end pieces 6 of the carriage. The arms 11 normally rest on the rail 4,as shown in Fig. 2, and in this position of the parte the carnage is controlled by feed dogs 13. the position of which is indicated b v dotted lines in Figs. 1 and 2.

Y The carriage can be released from. its escapetionarv' har 1.

shown in Fig. 1. Thr` mathine ronlains a kry, not shown. for thus releasing the carriage.

Tn order to ioel( thi` 'arriage l pivot a locking;r lever 1i lil-neath the rail 2 on a pivot screw 15 whioh is sereni-d into a snitahltlug' 19 projettlng |nward i'roin the sta- Said lever has a handit` 16 extending downward below the har 1 here il can he reached hy thtl o'aiator. A .slot is out. in the rail 2. as indivated al 17` and al a suitable point a slot 15%' is also out in th(` rail 5 of the \':arriagv y so that` itsl side wallsy or shoulders are transverse to the direction otE travel of the carriage. The eonstiruvlion is snth that hy moving the rarriag'o to auch position. that the slot. 18 registers with the lever 14. said lever can he turned up to the position shown in Fig. l wht-re it \\'ill enter the slots 17 and 19 and tii'er'tualh4 lor-h th(- \--.\rria;'l against motion in either dirvi-tion. Tin` 4slot 17 van. of voorw. he omitted. if desired. hut the lof'k is rendered stitler in its avtion hy passing through a slotA in a `la tionary part.

1n ordi-ito raise thtl rari; 1U to its releasing position. as. shown in Fig'. l, a levi-r QU ig provided, said lever ini-ing' pirotod on a screw 21 screwed into tinl lug; it) hurl( ot the screw 15. Thil lover JU has an arm extending toward the rear and lyingr beneath tlai rack 10 in such position that when said roar arm is elevati-d thtI rack will he raised. Said lever is of such width that it'I will not go between the teeth of the rank 1t) as is indicated in Fig. 5.

'The lever 20 has a Ishort4 arm 2L and the` lewi- 14 has a Cam arm Q91 lyingv ahow the arm *l* and in Such position and ot snth form that when the parts are in their nor mal unlockingr position shown in Fig. 2 the rear a rm oi the lever E() is dropped out` of contant with the rack 1t) hut when the handle 1G is drawn toward the front.l ot the machine to looking position as shown in Fig. 1 then the arm 23 of the lever 14 eains down the arm Q2 of the lever 20 and thus raises the rat-k 10 out of engagement. with the dogs 13. In thus drawing the handle to the front of the machine. it. will be understood that the lever arm 14 engages th(` previously alined notch before thtl release lever l0 can raise the rack wholl)v from the dog, thus 'inV suringf` against accidental release of the can riane before it is locked. The cam arm 23 has a dwell against. which thil arm 22 lies when the parte are in the position shown in Fig. 1, so that the weight. of the rack does not. tend to restore the Jever 14 to normal position. The. levers 14 and 2O are separately pivoted and arranged edge to edge or in tandem form.

1n order to hold the lever 14 in either locking or unlocking* position I have provided a datent. which as here shown consists oi a flat spring 24, said spring being secured in position ln' the two screws 15 and 21 and arting as a 4wort oi washer to guide the two levers lll and 2.0. M. its forward vnd the spring' i has a (Ionio-shaped lug 25 struck ont therefrom toward the right in position to engage thatr arm ot" the lever 14 which anta as a lorlt. When the harta are in the normal position shown in Fili. 2 this arm ol llulw'er is beneath the dome 25 and alu-n tiaparts` art` in the lookingr position said arm if' ahovv ysaid dome. which dome lat-inanndmspring tension toward the right'. prevents aerith-nia] displacement o1" the parl from l-itln'l' ol: their two positions.

'l`laslots 17 and 1H do not interfere with thtl al'tion ot the hall hearing in the Remington Junior mat-hine htfailse in that mat-hinr llul hall in the front raovway never yIets as nl-ar to the end ol" thv ifarl'iage nor oil thi stationar)4 rail as said slots.

=` lt will la noted that the lot-king and re` asino' derives are extremely simple and inexpensive and entirelyY eri'eetnal for their purpose.

Various ,:liang'L-s can be made in the de tails ot col. truetion and arrangement with-- out` departinv from my invention.

What. i claim as new and desire to secure lrv Letters Patent, is:

i. 1n a typewriting machine, the combination ot" a fixed part of the machine supportingr a fixed carriage rail 2 which is provided with a notch, a. carriage bar also provided with a notch. and a looking device mounted on the fixed part. of the machine and no1-mall)r out of engagement. with both said notehos and adapted to enter said notulws when the carriage has been moved .so that. they aline.

2. ln a t \'pe\vriting machine. the combi-v nation with a carriage and a stationary frame including a side bar, of a. Carriage look comprising a. looking lever pivoted on said side har and having a depending arm constituting a` handle, and another arm adapted to enter a notnoh insaid carriage sov arranged as to lot-.k the latter in both direc.- tions: and a sprintr detent having a projection adapted to engage one side of said locking lever to hold said lever in one position and to engage the other side of said lever to hold thv` latter in its other position.

2i. 1n a` typewriting marhine.4 the combination with a marriage and feed devices therefor, of means for tirst looking said carriage and then releasing the feed meehanism.

4. In a typewriting machine. the combination with a carriage and feed devices therefor, of means for looking said carriage, and simultaneously acting means for sepaatingy said feed devices, the looking means operating to hold the carriage before the separation o1V the feed devices.

5. In a t pewriting machine, the combi-,

ing parts adapted first to lock the carriageand then to separate the carriage feeding devices. f

6. In a typewriting machine,rthe combination with a carriage and eseapementmechamsn therefor, of a lock'for locking said carriage. and means operating in comunetion with said lock for releasing said carriage from its escapcment4 mechanism,after the carriage lock has become effective, to prevent endwise movement of thecarria e.

7. In a typewriting machinethe com ination of a carriage having a.bar portion provided with a notch and having also a relatively movable feed rack, two separately pivoted levers, one arran ed edgewise behind the other, one of said levers being a carriage locking lever, and the other a rack moving lever, one arm of the lookin lever engaging one arm of the rack re easing lever, the other arm of the locking lever engaging the notch in the carriage, and the other arm of thefreleasing lever operating to move or release the feed rack.

8. In a typewriting machine, the combination with a carriage and escapement mechanisrn for said carriage, of a hand operated means which when operated first locks said carriage and then releases it fromthe control of said escapement mechanism whereby the machine can be moved about without allowing the carri-.ige to run in either direction and without putting strain on said escapement mechanism.

il. In a typewriting machine, the combination with a carriage. and eseapement mechanism for cont-rolling said carriage, of two tandem, separately fulcrnmed levers, one operated by the. other. one of said levers when operated serving first to loclf the carriage and the other-of said levers acting then to release the carriage from the control of said eseapement mechanism. v

l0. ln a typewriting nrachine, the combination ot' a carriage and esca pement mechanism for controlling said carriage` a hand operated locking lever for locking said carriage, said lever having a cam portion, and

Vleasing said carriage said escapement mechanism.

means operated by said cam portion for rerom the control of 11. In a typewriting machine, the combinat'onwith a carriage and escapem'ent mechanism for controlling said carriage, vof

-a carriage lock, and associated carriage re- 0 leasing means, said releasing means including a cam having a, dwell, said cam effecting `the release of the carriage when said lock is.,

operated and said dwell holding the escapement mechanism in released position. 6l

12. In a typewriting machine, the combination with a carriage and escapement mechanism for controlling said carriage, of a carriage lock, hand operated means for operating said lock, a lever for releasing said carriage from the control of its escapement mechanism, and a cam having a dwell and operated by said hand operated means, said cam operating said lever and said lever being held up by said dwell. 'I6

13. In a typewriting machine, the combination with a stationary rail and a carriage traveling on said rail, said rail and carriage each having a cross-eut slot therein, of a carriage lock adapted to be moved by hand 30 into the two said slots when the carriage is in position to bring said slots into register.

14. In a typewriting machine, the combination with a stationary grooved rail, a, roller-bearing carriage having a co erata5 ing grooved rail, said stationary an carriage rails each having a crosscut slot therein. and a hand-operated carriage-locking lever adapted to be moved into said slots.

15. In a typewriting machine, the combino nation with a stationary rail and a carriage traveling on said rail, said rail and carriage each having a cross-cut slot therein, of a. carriage lock adapted to he moved by hand into the two said slots when the carriage is in position to bring said slots into register, and a carriage release device operated by said lock.

Signed at Syracuse, in the county of Onondaga and Slate of New York, this seeond day of October, A. D. 1916.

HERBERT A. CARHART.

ll' i tnesses S. B. BARRows, JENNir. A. STEVENS. 

